Connections Between the Non-Migrating Semidiurnal Tide Over the South Pole and Stationary Planetary Waves in the Northern Hemisphere

The westward propagating zonal wavenumber 1 non-migrating semidiurnal tide is a dominant dynamical feature present during the Austral summer over the South Pole. It has been hypothesized that this wave is generated by a non-linear interaction between the zonal wavenumber one stationary planetary wav...

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Main Author: Estante, Frederico Eduardo da Cunha
Format: Text
Language:unknown
Published: CU Scholar 2012
Subjects:
Atmospheric Tide
Planetary Wave
semidiurnal non-migrating
South Pole
stationary planetary wave
Aerospace Engineering
Atmospheric Sciences
Austral
Merra
South pole
Online Access:https://scholar.colorado.edu/asen_gradetds/42
https://scholar.colorado.edu/cgi/viewcontent.cgi?article=1042&context=asen_gradetds
id ftunicolboulder:oai:scholar.colorado.edu:asen_gradetds-1042
record_format openpolar
spelling ftunicolboulder:oai:scholar.colorado.edu:asen_gradetds-1042 2023-05-15T18:21:51+02:00 Connections Between the Non-Migrating Semidiurnal Tide Over the South Pole and Stationary Planetary Waves in the Northern Hemisphere Estante, Frederico Eduardo da Cunha 2012-01-01T08:00:00Z application/pdf https://scholar.colorado.edu/asen_gradetds/42 https://scholar.colorado.edu/cgi/viewcontent.cgi?article=1042&context=asen_gradetds unknown CU Scholar https://scholar.colorado.edu/asen_gradetds/42 https://scholar.colorado.edu/cgi/viewcontent.cgi?article=1042&context=asen_gradetds Aerospace Engineering Sciences Graduate Theses & Dissertations Atmospheric Tide Planetary Wave semidiurnal non-migrating South Pole stationary planetary wave Aerospace Engineering Atmospheric Sciences text 2012 ftunicolboulder 2018-10-07T08:49:45Z The westward propagating zonal wavenumber 1 non-migrating semidiurnal tide is a dominant dynamical feature present during the Austral summer over the South Pole. It has been hypothesized that this wave is generated by a non-linear interaction between the zonal wavenumber one stationary planetary wave in the northern hemisphere stratosphere and the zonal wavenumber two migrating diurnal tide. However, direct evidence of this interaction has yet to be observed. Using observations from the South Pole meteor radar (SPMR) system we can unam- biguously determine the structure of the non-migrating semidiurnal tide in the meridional wind field. These observations are correlated with the stationary planetary wave activity in the zonal and meridional wind fields in the northern hemisphere stratosphere. Data from the NASA Modern Era Retrospective-Analysis for Research and Applications (MERRA) global assimilative model are used to determine the structure of the zonal wavenumber 1,2, and 3 stationary planetary waves for this comparison. In addition, temperature data from the NASA TIMED SABER mission was analyzed and compared to the MERRA temperature observations as validation of the MERRA model results. Correlation analysis has indicated periods of time with significant correlation be- tween the zonal wave-number 1 stationary planetary wave and the SPMR data and other times with very strong anti-correlations. Similar features are observed with the zonal wave- number 3 stationary planetary wave. Text South pole University of Colorado, Boulder: CU Scholar Austral South Pole Merra ENVELOPE(12.615,12.615,65.816,65.816)
institution Open Polar
collection University of Colorado, Boulder: CU Scholar
op_collection_id ftunicolboulder
language unknown
topic Atmospheric Tide
Planetary Wave
semidiurnal non-migrating
South Pole
stationary planetary wave
Aerospace Engineering
Atmospheric Sciences
spellingShingle Atmospheric Tide
Planetary Wave
semidiurnal non-migrating
South Pole
stationary planetary wave
Aerospace Engineering
Atmospheric Sciences
Estante, Frederico Eduardo da Cunha
Connections Between the Non-Migrating Semidiurnal Tide Over the South Pole and Stationary Planetary Waves in the Northern Hemisphere
topic_facet Atmospheric Tide
Planetary Wave
semidiurnal non-migrating
South Pole
stationary planetary wave
Aerospace Engineering
Atmospheric Sciences
description The westward propagating zonal wavenumber 1 non-migrating semidiurnal tide is a dominant dynamical feature present during the Austral summer over the South Pole. It has been hypothesized that this wave is generated by a non-linear interaction between the zonal wavenumber one stationary planetary wave in the northern hemisphere stratosphere and the zonal wavenumber two migrating diurnal tide. However, direct evidence of this interaction has yet to be observed. Using observations from the South Pole meteor radar (SPMR) system we can unam- biguously determine the structure of the non-migrating semidiurnal tide in the meridional wind field. These observations are correlated with the stationary planetary wave activity in the zonal and meridional wind fields in the northern hemisphere stratosphere. Data from the NASA Modern Era Retrospective-Analysis for Research and Applications (MERRA) global assimilative model are used to determine the structure of the zonal wavenumber 1,2, and 3 stationary planetary waves for this comparison. In addition, temperature data from the NASA TIMED SABER mission was analyzed and compared to the MERRA temperature observations as validation of the MERRA model results. Correlation analysis has indicated periods of time with significant correlation be- tween the zonal wave-number 1 stationary planetary wave and the SPMR data and other times with very strong anti-correlations. Similar features are observed with the zonal wave- number 3 stationary planetary wave.
format Text
author Estante, Frederico Eduardo da Cunha
author_facet Estante, Frederico Eduardo da Cunha
author_sort Estante, Frederico Eduardo da Cunha
title Connections Between the Non-Migrating Semidiurnal Tide Over the South Pole and Stationary Planetary Waves in the Northern Hemisphere
title_short Connections Between the Non-Migrating Semidiurnal Tide Over the South Pole and Stationary Planetary Waves in the Northern Hemisphere
title_full Connections Between the Non-Migrating Semidiurnal Tide Over the South Pole and Stationary Planetary Waves in the Northern Hemisphere
title_fullStr Connections Between the Non-Migrating Semidiurnal Tide Over the South Pole and Stationary Planetary Waves in the Northern Hemisphere
title_full_unstemmed Connections Between the Non-Migrating Semidiurnal Tide Over the South Pole and Stationary Planetary Waves in the Northern Hemisphere
title_sort connections between the non-migrating semidiurnal tide over the south pole and stationary planetary waves in the northern hemisphere
publisher CU Scholar
publishDate 2012
url https://scholar.colorado.edu/asen_gradetds/42
https://scholar.colorado.edu/cgi/viewcontent.cgi?article=1042&context=asen_gradetds
long_lat ENVELOPE(12.615,12.615,65.816,65.816)
geographic Austral
South Pole
Merra
geographic_facet Austral
South Pole
Merra
genre South pole
genre_facet South pole
op_source Aerospace Engineering Sciences Graduate Theses & Dissertations
op_relation https://scholar.colorado.edu/asen_gradetds/42
https://scholar.colorado.edu/cgi/viewcontent.cgi?article=1042&context=asen_gradetds
_version_ 1766201183620300800

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